铬合金

When I opened them I saw her reach into the box again and pull out a little blue cloth purse with a silver catch on it.

你从没见过这么漂亮的车——苹果红镶着灰边，还有铬合金车轮。&妈妈从烫衣板上抬起头，问道：&多少钱？&&

Key parts are imported directly from overseas which are advanced and reliable* Integral casting machine body to ensure high rigidity and stability* Precision processed working table with hard chrome-plated surface prolong the life time of the machine* Japan made MIKI PULLEY an infinitely speed adjuster with 6 - 25m/min infeed speed* Fully automated for entire infeed process* Each high precision spindle is supported by two bearings which makes spindle more stable.

配备有HFB523设备的经济型机械，但是消耗了更少的电压。*关键部件直接从海外进口，先进可靠。*机身整体铸件，保证高坚韧度和稳定性。*精加工工作台表面镀硬铬合金，能延长机器的使用寿命。*日本制造MIKI PULLEY，带6―25m/min的进给速度的一款无限速度调节器。*整个进给程序完全自动化。*每个高精度的轴都由两个轴承支持，使轴更稳定。

Preheating system of the die set of swaying tray is heated by adopting Cr20Ni80 resistance wire, as diameter d is 1.5mm, node-pitch D is 36mm, screw-pitch h is 4mm, spiral column L' is 0.91m, 220V single-phase contacting is adopted.

摇盘模具预热系统采用Cr20Ni80 镍铬合金材料电阻丝加热，直径d 为1.5mm，节经D 选用36mm，螺距h 选用4mm，螺旋柱长度L'为0.91m，采用220V 单相接法。

Results: No significant differences in clinical effect between dental casting pure titanium and casting Co-Cr alloy used for complete denture or removable partial denture.

结果：采用的齿科铸造用纯钛或钴铬合金制作总义齿基托或者可摘局部义齿支架，两种材料在安全性、强度和适合性方面无显著差异。

Manufactured entirely from tool steel with A2 blades and hard chromed inner body for superior service life.

全部由A2型工具钢片制造，内部是坚固的铬合金，有着较长的使用寿命。

The polished chromed or matt steel frame creates a continuous line between the legs and back.

抛光铬合金或亚光钢结构框架在椅腿和椅背之间创造出流动的线条。

The sample's metal surface expanded and the thickness of oxide film is 1.72 times of the control samples.

摘要］ 目的：分析烤瓷用镍铬合金在上瓷前经过阳极钝化，除气预氧化处理后对其表面氧化膜的形貌、厚度的影响。

The theory and practical process of hot ferroalloy charging in Perrin Process are introduced.

介绍了&波伦法&热兑中的理论及实际过程，指出热兑是生产微铬合金的重要方法，运用这种方法降成本有实效。

Methods A total of 56 patients (172 teeth) were randomly divided into two groups: in the experimental group, 30 patients of 86 teeth were restored with IPS Empress 2 all porcelain crown restoration; and in the control group, 26 patients of 86 teeth were restored with nichrome baked ceramic crown.

目的 评价IPS Empress 2全瓷冠修复技术修复上颌前牙的临床效果。方法将56例患者172颗牙分成两组，试验组30例86颗牙，以IPS Empress 2全瓷冠修复技术修复；对照组26例86颗牙，以镍铬合金烤瓷冠修复。

The control group wear ordinary nichrome porcelain - crowns.

目的：探讨镀金镍铬合金烤瓷冠的优越性能。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。